china city
Sunday, January 23, 2011
china city religion and culture
china city religion and culture
china city a long wall
china city a long wall
china city culture
china city culture
china xian bell tower
china xian bell tower
china city
To tally the energy consumption of a city, the usual method is to add up all the energy used by residents—when they drive their car or turn on the air-conditioning—plus all the energy consumed by commercial buildings and industries in their day-to-day operations. But how should one account for the energy that went into building the office park where people work or paving the roads that people drive? And what about the energy required to make the clothes they are wearing?
china city wallpaper
china city wallpaper
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